CVE-2026-30803

CRITICAL

RTI Connext Micro Core Libraries - Integer Underflow

Title source: manual

Description

Integer Underflow (Wrap or Wraparound) vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buffers.This issue affects Connext Micro: from 4.0.0 before 4.3.0.

References (1)

Core 1

Core References

https://www.rti.com/vulnerabilities/#cve-2026-30803

Scores

CVSS v3 9.1

EPSS 0.0030

EPSS Percentile 21.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-191

Status published

Products (2)

RTI/Connext Micro 4.0.0 - 4.3.0

rti/connext_micro 4.0.0 - 4.3.0

Published Jun 17, 2026

Tracked Since Jun 17, 2026